Audi A4 B8 Saloon Trunk Lid Tail Light Lamp Wiring Rear Right O/S 8K5945094AA

Audi A4 B8 Saloon Trunk Lid Tail Light Lamp Wiring Rear Right O/S is an original electrical system component designed to support the rear right tail light in the saloon body style. Thanks to its factory-fit design for the specific Audi model, it ensures stable electrical connections and proper lighting operation. This is a practical solution for post-collision repairs, lamp replacement, or damage to the factory wiring harness.

Specifications and technical data

• SKU: 8K5945094AA-1
• Mark: Audi
• Condition: Used
• OEM Part Number: 8K5945094AA
• Substitutable numbers: 8K5945094AA, 8K5 945 094 AA
• Location on the vehicle: Rear, Right
• Part type: Wire Harness
• Category: Wiring Harnesses, Cables & Connectors

Purpose and function of the wiring harness

The presented wiring harness belongs to the Wires, harnesses, and connectors category and is designed specifically for the rear right section of the vehicle. It is responsible for supplying power and control signals to the lamp, which translates into the correct operation of position lights, brake lights, turn signals, or auxiliary lighting, depending on the configuration of the specific lamp used in the Audi A4 B8 Saloon.

Factory connectors and properly routed wires minimize the risk of voltage drops, contact overheating, or accidental circuit breaks, which often occur with makeshift electrical repairs.

Construction and fitment for Audi

The wiring harness has been constructed with the specific body layout and electrical system of the Audi in mind, which ensures:

• dedicated wire routing in the rear right section of the vehicle,
• connectors compatible with the factory tail light,
• appropriate length and geometry of the wires matched to the body mounts.

Such a solution facilitates installation and limits the need for modifications, soldering, or the use of additional adapters, which is particularly important for maintaining the reliability of the lighting system.

Service application and installation benefits

The rear right tail light wiring harness will prove useful both for post-accident repairs and for troubleshooting issues resulting from wear and tear, such as insulation abrasion, contact corrosion, or mechanical damage to the wires. Using an original component allows you to:

• restore full functionality of the rear lighting on the right side,
• maintain compliance with the factory Audi electrical system,
• reduce the risk of errors in light control systems.

For workshops and users, this means faster installation, fewer potential points of failure, and easier diagnostics in the future.

Condition and compatibility verification

The item comes from the used parts group, which allows for economical repair while maintaining the manufacturer's original specifications. Before purchasing, it is worth verifying the compatibility of the wiring harness with the specific vehicle equipment version to ensure full compatibility with the tail light used and the rest of the system.

In case of doubt, it is helpful to compare the connectors used and the wire layout with the harness currently installed in the car, which makes it easier to select the correct component for the Audi A4 B8 Saloon.

Expanding electrical system upgrades

If you are planning a comprehensive repair or upgrade of the rear electrical system in your Audi and need other elements from the same group, such as additional harnesses, wire sections, or service connectors, check out the available parts in the Audi wires, harnesses, and connectors category.

During major service work, it is also worth ensuring the efficiency of systems that affect safety and component durability. You can read about how high temperatures affect components in the engine compartment and how to wisely use the used parts market in our guide Summer heat vs. cooling system: used radiators and fans as a guarantee of savings.